Home / 118,829.80-163,982.29-65,112.22

Finding the Fourth Proportional to 118,829.80, 163,982.29 and 65,112.22

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Solution

The fourth proportional to 118,829.80, 163,982.29 and 65,112.22 is: 89,853.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,829.80 : 163,982.29 = 65,112.22 : x
  2. Step 2: Convert to fraction form
    118,829.80/163,982.29 = 65,112.22/x
  3. Step 3: Cross multiply
    118,829.80x = 163,982.29 × 65,112.22
  4. Step 4: Simplify right side
    118,829.80x = 10,677,249,959.89
  5. Step 5: Solve for x
    x = 10,677,249,959.89/118,829.80
  6. Step 6: Final answer
    x = 89,853.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.